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How to show animated bootstrap alert messages in asp.net

Introduction: In this article I am going to explain the trick to show animated twitter bootstrap alert message boxes for success, error, warning and info having custom message and close button feature using both asp.net C# and VB language.
How to show animated bootstrap alert messages in asp.net


What is Bootstrap?
Bootstrap is a powerful free and open source front-end framework developed by twitter team for faster, responsive and easier web development. It includes HTML and CSS based design templates for common user interface components like Typography, Forms, Buttons, Tables, Panels Navigation bars, Drop downs, Alerts, Popover, Modals, Tabs, Tooltips, Accordion, Carousel and many more as well as optional JavaScript extensions.

Implementation: Let’s create a sample web page to demonstrate the implementation of bootstrap alert message boxes in asp.net

Asp.Net C# Section

HTML Source
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
    <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>

    <style type="text/css">
        .messagealert {
            width: 100%;
            position: fixed;
             top:0px;
            z-index: 100000;
            padding: 0;
            font-size: 15px;
        }
    </style>
    <script type="text/javascript">
        function ShowMessage(message, messagetype) {
            var cssclass;
            switch (messagetype) {
                case 'Success':
                    cssclass = 'alert-success'
                    break;
                case 'Error':
                    cssclass = 'alert-danger'
                    break;
                case 'Warning':
                    cssclass = 'alert-warning'
                    break;
                default:
                    cssclass = 'alert-info'
            }
            $('#alert_container').append('<div id="alert_div" style="margin: 0 0.5%; -webkit-box-shadow: 3px 4px 6px #999;" class="alert fade in ' + cssclass + '"><a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a><strong>' + messagetype + '!</strong> <span>' + message + '</span></div>');
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <div class="messagealert" id="alert_container">
            </div>

             <div style="margin-top: 100px; text-align:center;">
            <asp:Button ID="btnSuccess" runat="server" Text="Submit" CssClass="btn btn-success"
                OnClick="btnSuccess_Click" />
            <asp:Button ID="btnDanger" runat="server" Text="Danger" CssClass="btn btn-danger"
                OnClick="btnDanger_Click" />
            <asp:Button ID="btnWarning" runat="server" Text="Warning" CssClass="btn btn-warning"
                OnClick="btnWarning_Click" />
            <asp:Button ID="btnInfo" runat="server" Text="Info" CssClass="btn btn-info"
                OnClick="btnInfo_Click" />
            </div>
        </div>
    </form>
</body>
</html>


Note: Have you observed I have added the required bootstrap js and css file reference in the Head tag above. It is required to use the bootstrap tools.

Asp.Net C# Code

public enum MessageType { Success, Error, Info, Warning };
    protected void Page_Load(object sender, EventArgs e)
    {
    } 
    protected void ShowMessage(string Message, MessageType type)
    {
        ScriptManager.RegisterStartupScript(this, this.GetType(), System.Guid.NewGuid().ToString(), "ShowMessage('" + Message + "','" + type + "');", true);
    }
    protected void btnSuccess_Click(object sender, EventArgs e)
    {
        ShowMessage("Record submitted successfully", MessageType.Success);
    }
    protected void btnDanger_Click(object sender, EventArgs e)
    {
        ShowMessage("A problem has occurred while submitting data", MessageType.Error);
    }
    protected void btnWarning_Click(object sender, EventArgs e)
    {
        ShowMessage("There was a problem with your internet connection", MessageType.Warning);
    }
    protected void btnInfo_Click(object sender, EventArgs e)
    {
        ShowMessage("Please verify your data before submitting", MessageType.Info);
    }

Explanation: In the above code I have created an enum. Enums are strongly typed constants which makes the code more readable and less prone to typing errors. When we have a set of values that are functionally significant and unchanged we can use enum.

Then I have created a function ShowMessage that accepts message and message type as a parameter and calls the javascript function and passes these values to that. Based on these passed values appropriate alert box gets displayed. 
We just need to pass the desired message and the type of message we want to display to the ShowMessage function and all is done. 

Asp.Net VB Section
Design the page same as we designed above in asp.net C# section, but replace the 4 buttons HTML with the following

   <asp:Button ID="btnSuccess" runat="server" Text="Submit" CssClass="btn btn-success" />
            <asp:Button ID="btnDanger" runat="server" Text="Danger" CssClass="btn btn-danger" />
            <asp:Button ID="btnWarning" runat="server" Text="Warning" CssClass="btn btn-warning" />
            <asp:Button ID="btnInfo" runat="server" Text="Info" CssClass="btn btn-info" />

Asp.Net VB Code
Public Enum MessageType
        Success
        [Error]
        Info
        Warning
    End Enum
    Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load 
    End Sub
    Protected Sub ShowMessage(Message As String, type As MessageType)
        ScriptManager.RegisterStartupScript(Me, Me.[GetType](), System.Guid.NewGuid().ToString(), "ShowMessage('" & Message & "','" & type.ToString() & "');", True)
    End Sub

    Protected Sub btnSuccess_Click(sender As Object, e As EventArgs) Handles btnSuccess.Click
        ShowMessage("Record submitted successfully", MessageType.Success)
    End Sub

    Protected Sub btnDanger_Click(sender As Object, e As EventArgs) Handles btnDanger.Click
        ShowMessage("A problem has occurred while submitting data", MessageType.Error)
    End Sub

    Protected Sub btnWarning_Click(sender As Object, e As EventArgs) Handles btnWarning.Click
        ShowMessage("There was a problem with your internet connection", MessageType.Warning)
    End Sub

    Protected Sub btnInfo_Click(sender As Object, e As EventArgs) Handles btnInfo.Click
        ShowMessage("Please verify your data before submitting", MessageType.Info)
    End Sub

Now over to you:
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7 comments

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October 13, 2015 ×

thanks..please keep posting about bootstrap :-)

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October 17, 2015 ×

Thanks kishor. I am glad you found this article helpful for you. Stay connected and keep reading for more useful updates on bootstrap and other.

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Waqas Khan
admin
June 08, 2016 ×

Thanku soooo much ...... this is realy helpfull

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August 18, 2016 ×

Thanks for you feedback..I am glad you liked this article..stay connected and keep reading...

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Sensa
admin
September 29, 2016 ×

Thanks Lalit :-)

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October 14, 2016 ×

Your welcome..Keep reading for more useful articles like this.

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Yogesh Patil
admin
May 27, 2017 ×

This made my day. Thank you for this.

Regards,
Yogesh

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